html,
body {
    margin: 0;
    padding: 0;
}

body {
    background-color: #f2f3f5;
    padding: 15px;
}

.layui-form-item {
    width: 500px;
}

.disabled {

    -webkit-user-select: none;

    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}